What is the Greatest Common Factor of 12942 and 12961?

Greatest common factor (GCF) of 12942 and 12961 is 1.

GCF(12942,12961) = 1

We will now calculate the prime factors of 12942 and 12961, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12942 and 12961.

How to find the GCF of 12942 and 12961?

We will first find the prime factorization of 12942 and 12961. After we will calculate the factors of 12942 and 12961 and find the biggest common factor number .

Step-1: Prime Factorization of 12942

Prime factors of 12942 are 2, 3, 719. Prime factorization of 12942 in exponential form is:

12942 = 2¹ × 3² × 719¹

Step-2: Prime Factorization of 12961

Prime factors of 12961 are 13, 997. Prime factorization of 12961 in exponential form is:

12961 = 13¹ × 997¹

Step-3: Factors of 12942

List of positive integer factors of 12942 that divides 12942 without a remainder.

1, 2, 3, 6, 9, 18, 719, 1438, 2157, 4314, 6471

Step-4: Factors of 12961

List of positive integer factors of 12961 that divides 12942 without a remainder.

1, 13, 997

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12942 and 12961. The biggest common factor number is the GCF number.
So the greatest common factor 12942 and 12961 is 1.

Also check out the Least Common Multiple of 12942 and 12961